accept_check is a tool to check whether a sentence can be accepted or
rejected on a grammar (prefix.dfa and prefix.dict). The sentence should be
given from standard input. You can do a batch check by preparing all test
sentence at each line of a text file, and give it as standard input of
accept_check.

This tool needs .dfa, .dict and .term files. You should convert a written
grammar file to generate them by mkdfa.pl.

A sentence should be given as space-separated word sequence. It may be required
to add head / tail silence word like sil, depending on your grammar. And
should not contain a short-pause word.

When a word belongs to various category in a grammar, accept_check will
check all the possible sentence patterns, and accept it if any of those is
acceptable.